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Number Base Converter

Convert numbers between binary, octal, decimal, and hexadecimal.

About Number Base Converter

Number systems represent values using different bases: binary (base 2) for digital circuits, octal (base 8) for Unix permissions, decimal (base 10) for everyday use, and hexadecimal (base 16) for memory addresses and color codes. A base converter lets you instantly translate a value between these systems, which is essential for low-level programming and system administration.

How to Use

Enter a number in any base field (binary, octal, decimal, or hexadecimal) and the other fields update automatically with the converted values. Copy any result with one click. The tool validates your input and shows an error if the value is not valid for the selected base.

Common Use Cases

  • Converting between hex color codes and their decimal RGB values
  • Understanding binary representations for bitwise operations
  • Converting octal Unix file permissions to decimal or binary
  • Debugging memory addresses and pointer values in hexadecimal
  • Learning number systems for computer science coursework